DURAMAG SPEED 5.56 NATO/.223 REM/.300 BLK ALUMINUM AR-15 30-Rd Magazine Overview The DURAMAG Speed(TM) Aluminum magazine sets a new standard for USGI-style magazines, offering exceptional reliability and durability. Made from lightweight 6061-T6 aluminum with a Type-III hard-coat anodized finish, this magazine has become the trusted choice for OEMs, law enforcement, and military units globally. Engineered with precision tooling and advanced manufacturing, the DURAMAG Speed(TM) delivers consistent performance under demanding conditions. Key Features Caliber Compatibility: 5.56 NATO / .223 Remington / .300 BLK Capacity: 30 rounds Material: 6061-T6 aluminum construction with Type-III hard-coat anodized finish Design: Progressive die tooling and Post and Hole(TM) assembly ensure flawless functionality and reliability Storage: Safe for extended periods while loaded, without swelling or flexing Applications Perfect for military personnel, law enforcement, competitive shooters, and civilian enthusiasts seeking a lightweight and reliable magazine for 5.56 NATO, .223 Remington, and .300 Blackout ammunition. Additional Features Precision Manufacturing: Fully robotic welding ensures uniform quality and reliability. Durable Finish: Anodized coating resists wear and corrosion, integrating seamlessly with the aluminum. Lightweight Strength: Combines the benefits of a metal body with reduced weight for ease of handling. Consistency: Advanced tooling and quality control processes ensure dependable performance every time.